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参数资料
| 型号： | LM3402_07 |
| 厂商： | National Semiconductor Corporation |
| 英文描述： | 0.5A Constant Current Buck Regulator for Driving High Power LEDs |
| 中文描述： | 0.5A的恒流降压稳压器用于驱动高功率LED |
| 文件页数： | 20/24页 |
| 文件大小： | 431K |
| 代理商： | LM3402_07 |
Electrical Characteristics V
IN = 24V unless otherwise indicated. Typicals and limits appearing in plain type apply
for T
A = TJ = +25°C. (Note 4) Limits appearing in boldface type apply over full Operating Temperature Range. Datasheet min/max
specification limits are guaranteed by design, test, or statistical analysis.
LM3402
Symbol
Parameter
Conditions
Min
Typ
Max
Units
SYSTEM PARAMETERS
t
ON-1
On-time 1
V
IN = 10V, RON = 200 k
2.1
2.75
3.4
s
t
ON-2
On-time 2
V
IN = 40V, RON = 200 k
490
650
810
ns
LM3402HV
Symbol
Parameter
Conditions
Min
Typ
Max
Units
SYSTEM PARAMETERS
t
ON-1
On-time 1
V
IN = 10V, RON = 200 k
2.1
2.75
3.4
s
t
ON-2
On-time 2
V
IN = 70V, RON = 200 k
290
380
470
ns
LM3402/LM3402HV
Symbol
Parameter
Conditions
Min
Typ
Max
Units
REGULATION AND OVER-VOLTAGE COMPARATORS
V
REF-REG
CS Regulation Threshold
CS Decreasing, SW turns on
194
200
206
mV
V
REF-0V
CS Over-voltage Threshold
CS Increasing, SW turns off
300
mV
I
CS
CS Bias Current
CS = 0V
0.1
A
SHUTDOWN
V
SD-TH
Shutdown Threshold
R
ON / SD Increasing
0.3
0.7
1.05
V
SD-HYS
Shutdown Hysteresis
R
ON / SD Decreasing
40
mV
OFF TIMER
t
OFF-MIN
Minimum Off-time
CS = 0V
300
ns
INTERNAL REGULATOR
V
CC-REG
V
CC Regulated Output
6.6
7
7.4
V
IN-DO
V
IN - VCC Dropout
I
CC = 5 mA, 6.0V < VIN < 8.0V
300
mV
V
CC-BP-TH
V
CC Bypass Threshold
V
IN Increasing
8.8
V
CC-BP-HYS
V
CC Bypass Hysteresis
V
IN Decreasing
225
mV
V
CC-Z-6
V
CC Output Impedance
(0 mA < I
CC < 5 mA)
V
IN = 6V
55
V
CC-Z-8
V
IN = 8V
50
V
CC-Z-24
V
IN = 24V
0.4
V
CC-LIM
V
CC Current Limit (Note 3)
V
IN = 24V, VCC = 0V
16
mA
V
CC-UV-TH
V
CC Under-voltage Lock-out
Threshold
V
CC Increasing
5.25
V
CC-UV-HYS
V
CC Under-voltage Lock-out
Hysteresis
V
CC Decreasing
150
mV
V
CC-UV-DLY
V
CC Under-voltage Lock-out
Filter Delay
100 mV Overdrive
3
s
I
IN-OP
I
IN Operating Current
Non-switching, CS = 0V
600
900
A
I
IN-SD
I
IN Shutdown Current
RON / SD = 0V
90
180
A
CURRENT LIMIT
I
LIM
Current Limit Threshold
530
735
940
mA
DIM COMPARATOR
V
IH
Logic High
DIM Increasing
2.2
V
IL
Logic Low
DIM Decreasing
0.8
V
5
www.national.com
LM3402/LM3402HV
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LM3402EVAL | 功能描述:BOARD EVALUATION FOR LM3402 RoHS:是 类别:编程器，开发系统 >> 评估板 - LED 驱动器 系列:PowerWise® 标准包装:1 系列:PowerWise® 电流 - 输出 / 通道:20mA 输出及类型:1，非隔离 输出电压:17V 特点:可调光 输入电压:2.7 ~ 5.5 V 已供物品:板 已用 IC / 零件:LM3508 相关产品:LM3508TLX-ND - IC LED DRVR WHT BCKLGT 9USMDLM3508TLDKR-ND - IC LED DRVR WHT BCKLGT 9MICROSMDLM3508TLCT-ND - IC LED DRVR WHT BCKLGT 9MICROSMDLM3508TLTR-ND - IC LED DRVR WHT BCKLGT 9MICROSMD |
| LM3402EVAL | 制造商:Texas Instruments 功能描述:EVAL BOARD |
| LM3402EVAL/NOPB | 功能描述:电源管理IC开发工具 LM3402 EVAL BOARD RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| LM3402HV | 制造商:Texas Instruments 功能描述:Buck Regulator ,0.5A ,LED Drivers,MSOP8 |
| LM3402HVEVAL | 功能描述:BOARD EVALUATION FOR LM3402HV RoHS:是 类别:编程器，开发系统 >> 评估板 - LED 驱动器 系列:PowerSmart® 标准包装:1 系列:PowerWise® 电流 - 输出 / 通道:20mA 输出及类型:1，非隔离 输出电压:17V 特点:可调光 输入电压:2.7 ~ 5.5 V 已供物品:板 已用 IC / 零件:LM3508 相关产品:LM3508TLX-ND - IC LED DRVR WHT BCKLGT 9USMDLM3508TLDKR-ND - IC LED DRVR WHT BCKLGT 9MICROSMDLM3508TLCT-ND - IC LED DRVR WHT BCKLGT 9MICROSMDLM3508TLTR-ND - IC LED DRVR WHT BCKLGT 9MICROSMD |
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